Longevity Highly Crosslinked Polyethylene

Longevity Crosslinked Polyethylene was developed to address the issue
of wear in total hip arthroplasty. To help ensure optimal wear
resistance, Zimmer Biomet employs a proprietary process.

Removable Longevity Liners are available in neutral, elevated,
oblique, and 7-mm offset. This offers a range of options to assist the
surgeon in optimizing femoral head coverage and restoring proper hip kinematics.

This process creates a three-dimensional structure that is more
resistant to abrasion and process a 10-fold wear rate reduction
compared to standard polyethylene control samples.1,2
Extensive hip-simulator wear testing has demonstrated the benefits of
crosslinking with Longevity Polyethylene.

Longevity Crosslinked Polyethylene is available with the
Trilogy® Acetabular System.

In a seven to ten year follow-up of 247
primary THA's using Zimmer Biomet Highly Crosslinked Liners, femoral
head penetration did not increase over time after the first year of
implantation using 241 primary THA's using standard polyethylene as
the control4

In vitro5

Independent testing has shown that the in vitro wear rate of
Zimmer Biomet's Highly Crosslinked Polyethylene was near zero and
lower than that of its competitors

Cleaning Instructions

Longevity implants are sterilized with Ethylene Oxide Gas and carry
the symbol on the labeling. These devices remain sterile as long as
the package integrity has not been violated. Inspect each package
prior to use and do not use the component if any seal or cavity is
damaged or breached or if the expiration date has been exceeded. Once
opened, the component must be used or discarded.

Resterilization Information Resterilization of this device is specifically not recommended.

Crosslinking has been shown to reduce the wear rate of polyethylene
by up to 89% in laboratory studies.1 Clinical experience
with highly crosslinked polyethylenes has also demonstrated a
substantial reduction in the rate of wear.2,3 This
remarkable process creates a three-dimensional structure that is more
resistant to abrasion.4,5

Longevity Highly Crosslinked Polyethylene was developed to address
the issue of wear in total hip arthroplasty. To help ensure optimal
wear resistance, Zimmer employs a proprietary process based in part on
patents licensed from Massachusetts General Hospital and the
Massachusetts Institute of Technology. Using high-dose electron-beam
radiation, this process fully crosslinks broken molecular polyethylene
chains, leaving virtually no free radicals to promote oxidation.

The process produces a 10-fold wear rate reduction—an average 89%
reduction of debris generated—compared to standard polyethylene
control samples.1 The material also meets all of the
mechanical property requirements of the ASTM and ISO standards.
Longevity Crosslinked Polyethylene is available with the
Continuum® Acetabular System, Trabecular Metal™ Modular
Acetabular System, and Trilogy® Acetabular System, which is
based on the long Zimmer Biomet tradition of clinical success with the
Harris-Galante™ and HGP II porous cups.

Indications

The system is indicated for primary or revision surgery in
skeletally mature individuals for rehabilitating hips damaged as a
result of noninflammatory degenerative joint disease (NIDJD) or its
composite diagnoses of osteoarthritis, avascular necrosis, protrusio
acetabuli, traumatic arthritis, slipped capital epiphysis, fused
hip, fracture of the pelvis, and diastrophic variant

The
system is intended for use either with or without bone cement in
total hip arthroplasty

Contraindications

This device is contraindicated for the following:

Osteoradionecrosis

Neuromuscular compromise, vascular
deficiency, or other conditions in the affected limb that may lead
to inadequate skeletal fixation

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Distribution to any other recipient is prohibited.

For product information, including indications, contraindications,
warnings, precautions, potential adverse effects and patient
counseling information, see the package insert and information on this
website. To obtain a copy of the current Instructions for Use (IFU)
for full prescribing and risk information, please call 1-800-348-2759,
press 4 for 411 Technical Support.

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